Answer:
O, N, C, H
Explanation:
Electronegativity of an element is the property that combines the ability of its atom to lose or gain electrons. It measures the relative tendency with which the atoms of the element attracts valence electrons in a chemical bond.
On the periodic table, Electronegativity increases across the period but decreases down a group.
To solve the given problem, let us use thE Pauling's table of electronegativities to compare the electronegativities of the elements.
On the table:
C = 2.5
H = 2.1
O = 3.5
N = 3.0
In terms of decreasing electronegativities, the atoms are arranged as:
O N C H
The answer is chlorine
That is chlorine is the green-yellowish gas that is used as a disinfecting agent.
Among the options, iodine is a solid ,bromine is liquid while fluorine and chlorine are gases.
Chlorine is greenish yellow colored gas while fluorine is pale yellow, chlorine is used as a disinfecting agent and oxidizing agent as well.
Answer:
The answer option which best describes nuclear fission is: C. A nucleus collides with a neutron and splits, releasing energy.
A nuclear reaction can be defined as a type of reaction in which the nucleus of an atom is transformed by either being joined (fusion) or split (fission) with the nucleus of another atom of a radioactive element and accompanied by a release of energy.
Explanation:
Yo sup??
Heat produced per gram of reactant=13.1 KJ
.=13100 J
Actual heart produced=1850 J
By applying unitary method we get the weight of reactant to be x
x=1850/13100
=0.141 gm
Hope this helps
